Carbon Steel Self-Tapping Screws
Product Overview
This square drive pan head sharp point self‑tapping screw is a high‑performance fastening product specifically developed for substrates such as wood, engineered wood, and plastic sheets. Available in thread diameters of 8#‑10# and lengths ranging from 12 to 25 mm, it suits the majority of conventional assembly scenarios. The product features a square (Robertson) drive design with a pan head structure and a sharp‑point self‑tapping tail. The surface is treated with a CL4‑grade anti‑corrosion coating, balancing installation convenience, connection stability, and long‑term weatherability. It is widely used in woodworking, furniture, outdoor construction, and other fields, making it a highly versatile and reliable basic fastening component.
Product Applications
Furniture Manufacturing: Assembly of panel furniture such as cabinets, tables, and chairs, suitable for various engineered wood and solid wood substrates.
Outdoor Projects: Installation of wooden cabins, fences, doors, and windows, capable of withstanding corrosion from moisture and salt spray.
Light Industrial Assembly: Fixing appliance housings and plastic parts, suitable for automated production lines and visible component installation.
DIY and Maintenance: Home renovation, handicrafts, and component repairs, providing secure fastening with easy operation.
Product Features
Square Drive Anti‑Slipping Drive: The square recess provides direct torque transmission, reducing cam‑out and bit wear, compatible with both manual and power tools, suitable for DIY as well as batch production.
Sharp Point for Efficient Self‑Tapping: The sharp point combined with coarse thread allows rapid driving into substrates without pre‑drilling, with low resistance, anti‑loosening performance, and minimal risk of damaging workpieces.
Pan Head for Even Pressure Distribution: The circular pan head offers a large contact area, distributing pressure evenly to avoid crushing the workpiece, leaving a neat and smooth appearance after installation.
CL4‑Grade Long‑Lasting Anti‑Corrosion: The composite coating resists salt spray and moisture, suitable for moderate indoor and outdoor corrosive environments, with an extended service life.
Multiple Sizes for Broad Adaptability: With 8#‑10# diameters and 12‑25 mm lengths, it flexibly accommodates different substrate thicknesses and assembly requirements.
| Material | Carbon steel |
| Surface Treatment | Mechanical galvanizing Grade 4 |
| Head Type | Pan head |
| Slot Type | Square groove |
| Thread Type | Full thread |
| Screw Diameter | approx. 4.2mm |
| Screw Length | Optional (12mm to 25mm) |
| Screw Type | Self-tapping screw |
| Corrosion Resistance | High (suitable for outdoor humid, low-corrosive environments) |
| Applicable Tools | Square groove screwdriver or power tool |

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malingfei@linghongscrew.com

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